Documentation Index
Fetch the complete documentation index at: https://filla.io/docs/llms.txt
Use this file to discover all available pages before exploring further.
How fonts work
Filla loads your chosen font from Google Fonts when a respondent opens your form. The font applies to all text on the form:- Page titles
- Field labels
- Field descriptions
- Input text (what respondents type)
- Buttons
- The “Built with Filla” footer
Choosing a font
Select System default to use the browser’s native font stack (no external font loaded).
Font groups
The font picker is organized into grouped sections:- System
- Featured
- Sans
- Serif
- Display
- Mono
Available fonts
Filla includes a larger curated catalog of Google Fonts, chosen for readability and versatility across form contexts:| Font | Group | Best for |
|---|---|---|
| Inter | Featured / Sans | Business forms, professional use |
| DM Sans | Featured / Sans | Events, creative projects |
| Plus Jakarta Sans | Featured / Sans | HR, onboarding, SaaS |
| Manrope | Featured / Sans | Lead gen, premium-feeling forms |
| Space Grotesk | Featured / Display | Tech brands, bolder styling |
| Lora | Featured / Serif | Editorial and polished forms |
| Playfair Display | Featured / Serif | Luxury, fashion, higher contrast |
| IBM Plex Mono | Featured / Mono | Technical or developer-facing forms |
| Outfit, Sora, Urbanist, Public Sans, Work Sans, Instrument Sans, Nunito, Rubik, Poppins, IBM Plex Sans, Open Sans, Roboto, Source Sans 3 | Sans | Clean UI-focused typography |
| Merriweather, Crimson Pro, Cormorant Garamond, Libre Baskerville, EB Garamond, Source Serif 4, Fraunces | Serif | Editorial or traditional branding |
| Syne, Bricolage Grotesque, Archivo Black, Bebas Neue, Abril Fatface, Raleway, Quicksand, Comfortaa | Display | Distinctive branded forms |
| JetBrains Mono, Fira Mono, Source Code Pro | Mono | Technical, code-adjacent, structured layouts |
Performance
Fonts are loaded via Google Fonts CDN withdisplay=swap — the form renders immediately with a fallback font, then swaps in your chosen font once it’s loaded. This prevents layout shift and ensures fast load times.
Font previews in the editor are lazy-loaded as they scroll into view, so a larger catalog does not slow down the editor unnecessarily.
Common questions
Can I upload my own custom font?
Can I upload my own custom font?
Not currently. Filla supports a curated catalog of Google Fonts plus the system default stack.
Does the font apply to the email confirmation too?
Does the font apply to the email confirmation too?
No. Confirmation emails use a standard email-safe font stack. The form font only applies to the form itself.
Will changing the font affect my form's load time?
Will changing the font affect my form's load time?
Minimally. Google Fonts are cached globally across the web. Most respondents will already have popular fonts cached from other websites.